We look at the division of 491819 by 69 
The aim is to understand the frequency of 69 in 491819.

Moving on to step 1:
When dividing 4 by 69, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 69

Moving on to step 2:
49 divided by 69 is 0 with a remainder of 49.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 49, we get 49.
Bring next digit (1) of the dividend behind the 49 and repeat the process: 491 / 69

Moving on to step 3:
If we divide 491 by 69, we get 7 and a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 8 after subtracting 483 from 491.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 69

Step 4:
88 divided by 69 is 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 71.0
The remainder is 19 after subtracting 69 from 88.
Include the next digit (1) from the dividend after 19, then repeat: 191 / 69

Advancing to step 5:
The number 69 fits into 191 2 times, leaving a remainder of 53.
Put 2 as the next digit of the answer. 
Result so far: 712.0
Deduct 138 from 191 and we're left with 53.
Include the next digit (9) from the dividend after 53, then repeat: 539 / 69

On to step 6:
When dividing 539 by 69, we get 7 with a remainder of 56.
The number 7 becomes the next digit in our result. 
Result so far: 7127.0
If we take 483 away from 539, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 7:
If we divide 560 by 69, we get 8 and a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 7127.8
Subtract 552 from 560 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
If we divide 80 by 69, we get 1 and a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 7127.81
The remainder is 11 after subtracting 69 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 9:
If we divide 110 by 69, we get 1 and a remainder of 41.
Write down 1 as next digit of the result. 
Result so far: 7127.811
If we take 69 away from 110, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

The final outcome is 7127.811, with a leftover of 0.0041.